RoadVitals

2018 Thor Motor Coach Four Winds

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
4
Latest Sep 12, 2025
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
5
Latest Mar 27, 2019
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 4 NHTSA owner-reported complaints for the 2018 Thor Motor Coach Four Winds, most frequently naming the other / unspecified, suspension and fuel system categories. 5 safety recalls have been issued covering this model year; and 4 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Other / unspecified233.3%
  • Suspension233.3%
  • Fuel system116.7%
  • Steering116.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

5 campaigns cover this model year

View all 5

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
19V240000

VISIBILITY:REARVIEW MIRRORS/DEVICES; VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR

Mar 27, 2019
110 units potentially affected
The defect: Thor Motor Coach (TMC) is recalling certain 2018 Thor Chateau and Four Winds motorhomes and 2019-2020 Magnitude and Omni motorhomes. The backup camera displays may revert back to the factory default settings which may cause the camera image to be reversed.
The risk: If the monitor displays the image in reverse, the driver may unintentionally turn in the wrong direction, increasing the risk of crash.
The remedy: TMC will notify owners, and dealers will install a harness to install that will prevent the image from inverting, free of charge. The recall began April 30, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000168.
Thor Motor CoachManufacturer number RC000168View on NHTSA.gov
18V741000

EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:LINES AND FITTINGS

Oct 19, 2018
1,384 units potentially affected
The defect: Thor Motor Coach (TMC) is recalling certain 2018-2019 Thor Four Winds, Chateau, and Freedom Elite vehicles. The liquid propane (LP) hose may not have adequate space between the floor and the metal plate on the refrigerator, causing damage to the hose and possibly creating a propane leak.
The risk: A propane leak can increase the risk of a fire.
The remedy: TMC will notify owners, and dealers will remove a portion of the refrigerator base plate to provide additional clearance for the LP hose, free of charge. The recall began December 11, 2018. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000162.
Thor Motor CoachManufacturer number RC000162View on NHTSA.gov
17V758000

EQUIPMENT

Nov 22, 2017
110,400 units potentially affected
The defect: Thor Motor Coach (Thor) is recalling various 2003-2018 recreational vehicles, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. See a list of the affected trailer models at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
The risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
The remedy: Thor will notify owners, instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on January 15, 2018. Owners may contact Thor customer service at 1-877-500-1020, or Kidde customer service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information.
Thor Motor CoachView on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Fuel system
Filed Sep 12, 2025

The contact owns a 2018 Thor Motor Coach Four Winds Motorhome constructed on a 2017 Ford E-350 Chassis and hauling a 17-foot cargo trailer. The contact stated that while traveling to another state in the mountains, the RV suddenly began to buck and lost motive power and stalled on several occasions. The contact was able to pull over safely. There were no warning lights illuminated. The RV was taken to an independent mechanic who determined that the fuel module needed to be replaced. The RV was repaired, but the failure reoccurred. A mobile RV mechanic determined that the fuel module needed to be replaced. The RV was repaired, but the failure persisted. The RV stalled, leaving the occupants stranded for several hours, but eventually restarted. The RV was taken to the local dealer, where it was determined that the OEM fuel module needed to be replaced but eventually used an aftermarket fuel module. The RV was towed to another local dealer, Harry Robinson Sallisaw Ford (2300 S Kerr Blvd, Sallisaw, OK 74955) where it was determined that the fuel module, fuel pump, and PCM needed to be replaced. The vehicle was repaired, but the failure persisted, and the RV was towed back to the same local dealer. The manufacturer was contacted, who confirmed there was no warranty coverage on the RV for the failure. The failure mileage was approximately 70,000.

NHTSA ID
11686957
Incident
Jun 1, 2025
Mileage
70,000 mi
Other / unspecified
Filed Oct 11, 2021

Twice! Wheel rim developed a hairline crack in the weld adjacent to the valve stem. 2-times, different rims - both on inside dually rear - one left and one right side. The first happened on our first long trip in 2019. The second time was on the next long trip of 2021. Internet forums are showing that this is a rather "COMMON" issue! Plus, Mercedes has recorded lawsuits with similar rim weld failures on other Mercedes vehicles. I get NO sympathy or compensation through Mercedes or Thor - They each kick the can to the other, and the consumer is left at risk. Human safety is at great risk!

NHTSA ID
11436297
Incident
Sep 14, 2021
Suspension
Filed Jul 2, 2018

INCORRECT WEIGHT DISTRIBUTION. BACK OF VICHICLE TO LOW,WHICH CAUSES FRONT TO BE TO HIGH. UNABLE TO MAINTAIN LANE WHEN BENG PASSED BY A BIG RIG OR SIDE GUST OF WIND. VICHICLE VERY UNSTABLE,SHOULD NOT HAVE BEEN SOLD IN THAT CONDITION.

NHTSA ID
11105074
Incident
Aug 2, 2017
Other / unspecifiedSteeringSuspension
Filed Oct 20, 2017

ONCE YOU GO ABOVE 40 MPH THE STEARING WHEEL STARTS TO SHIMMY AND THE FRONT END VIBRATES. IT TAKES ALL YOUR EFFORT TO HOLD IT ON THE ROAD UNTIL YOU REACH THE SPEED OF 70 MPH OR MORE. THIS HAPPENS WHILE TRAVELING ON MAJOR HIGHWAYS LIKE I95.

NHTSA ID
11035145
Incident
Sep 7, 2017

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

RC000218SADealer

ELECTRICAL SYSTEM

us. On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of the Electronic Stability Control (“ESP”) control unit functions. If ESP control unit functions are disabled, vehicle driving stability may be impacted under certain driving conditions, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2013-2020 Chateau Citation & Four Winds Siesta, 2017-2019 Compass, 2017-2020 Four Winds, Gemini, Quantum, Chateau, & Synergy, and 2018-2020 Freedom Elite motorhomes

RC000210SAOwner

STEERING

Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due to being unaware that chassis recall notifications we provide to TMC Owners and Dealers would need to be submitted at time of release, this communication is a historical filing.

LTR 120519

EQUIPMENT

This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.

LTR 110317

EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This letter stated that there was one (1) Service Notification issued for the month of October, 2017.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Thor Motor Coach Four Winds by model year
YearComplaintsRecallsInvestigationsIssue Index
2026220—
2025020—
2024010—
2023120—
2022220—
2021290—
2020160—
2019240—
2018Viewing450—
2017160—
2016240—
2015310—
2014110—
2013010—
2012130—
2011120—
2010020—
2009010—
2008010—
2007010—
2006010—
2005010—
2004010—
2003010—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.